Coupling-frame.



No. 69|,|79. Patented lan. I4, |902.

S. C. ROCK.

couPLm' FRAME.

[Apphcation led Sept. 27, 1901,)

/N VENTO/5 w/TNESSES /fq Q. @m /S-a/MSZ 250G/: y n l i 3y M 761A ATTORNEYS of my invention.

Nrrn Sas SAMUEL C. ROCK, OF QUINOY, PENNSYLVANIA.

COUPLINGMFRAME.

SPECIFICATION forming part of Letters Patent No. 691,179, dated January 14, 1902.

Application led September 27, 1901. Serial No. 76,787. (No model.)

To @ZZ whom t may concern:

Be it known that I, SAMUEL C. ROCK, a citizen of the United States, residing at Quincy, in the county of Franklin and State of Penn- Sylvania, have made certain newV and useful Improvements in Coupling-Frames, of which the following is a specification.

My invention is a coupling-frame for use on threshing machines and other similar heavy machines and inconnection with tractionfengines; and the invention has for an object to provide a novel construction of coupling-frame for use between the machine and the engine and by which the position of the parts may be quickly adj usted or changed in order to secure the backing of the machine into a barn-door or 'through any other narrow opening through which it may be desired to back the machine.

The invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a top plan View Fig. 2 is a sectional side view thereof. Fig. 3 is a detail perspective View of the frame on the traction-engine. Fig. i illustrates a different form of gearing from that shown in Fig. l, and Fig. 5 is a detail view of the pole.-

In the accompanying drawings, A is de signed to illustrate the front axle of a threshing-machine or other similar heavy machinesuch as a clover-huller, for instance-and B represents an axle or beam of a traction-en gine, which, like the threshing-machine, may be of any desired construction. This portion B of the traction-engine is provided with a frame B', composed of a lower bar b and an upper bar b', the latter having an offset box b2, in which fits the bar on the front end of the pole presently described.

The A axle is provided on its front side with hooks 'A' and with bolts AJ2 for closing said hooks when adjusted as shown in full lines,

Figs. l and 2, the said bolts being pivoted so.

they can be raised clear of the hooks, as shown in dotted lines, Fig. 2. The coupling-frame has a cross or base bar C, which is provided with clevises C for connection with the hooks A', as shown in Fig. 2. The cross-bar C is also provided at its center with a boxing D, which extends around the rear side of the cross-bar and projects at D' in advance thereof and aids in pivotally connecting the pole E, presently described. The arc F is secured at its-ends F rigidly to the crossbar C and projects in advance of said cross-bar and is toothed ou its front edge at F2, as shown in Fig. l. At its center the arc F is provided with a rearwardly -projecting portion F3, which is perforated for the passage of the pin G, by which the pole E is locked in its straightline position, (shown in Fig. 1,) such as when the machine is being pulled along the road.

The pole E is provided at its rear end with the upper and lower plates E and E2, which are spaced apart to receive between them the gear H and to lit above and below the arc F and to extend at their rear ends within the extended end D of the box D to receive the pivoted bolt I, as shown in Figs. l and 2. Between the arc F and the boxing D the bars E' and E2 are braced by the block J, which is fitted and secured between them, as shown in Figs. l and 2, and the pole E is braced by the truss K, Which is arranged on its under side, and extends from a point in advance of the rear end of the bodyc of the pole E and a point below the block J, as shown in Fig. 2, thus giving sufficient strength to the portion of the pole which carries the operating devices, which will now be described.

The gear-wheel H meshes with the teeth F;a of the arc F and is secured to a shaft L, having a hand-Wheel L and also supplied with a rack-wheel M, which may be engaged by a sliding bolt N, suitably guided on the pole E and normally held clear of the rack-wheel M by a spring N. This bolt has a lateral arm N2, which connects at N3 with one arm O of a bell-crank lever O, which is pivoted at O2 alongside the pole and has its arm O3 provided with a portion O4, upon which the foot may operate to press the bolt N into engagement with the rack-wheel M to lock the said wheel and the gear-Wheel H in any position to which they may be adjusted. This. will be foundconvenient in backing a machine into a barn, as when the parts have been properly adjusted it may be desired to lock them in such adjustment to prevent any slipping or derangement by the striking of the Wheels of the thresher against any unusual obstruction.

The pole is provided at P with a platform IOO A meshing with the toothed are, substantially' on which the operator may stand in grasping the hand-wheel L in operating the machine. When on this platform P, it will be noticed, he will face the threshing-machine and can readily operate the hand-wheel to guide the machine into a doorway.

In Figs. l and 2 the gear wheel H is a toothed wheel meshing with the arc F, while in Fig. t the gear-wheel shown at Q is a worm-wheel, the teeth of the arc being suitably formed for coperation therewith.

At its front end the poleE is provided with a projecting bar c', which enters the box B2 and is secured by a bolt or pin R, as shown in Fig. 7.

As will be understood from Figs. land 2, the construction is simple, compact, easily applied to any style of machine, and can be readily operated for the desired purpose.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The coupling frame herein described composed of the base-bar provided with means for connection with a threshing-machine and having on its front side the projecting toothed are, the box fitted to the middle of the crossbar and extending invadvance thereof, the coupling-pole provided with a platform for the operator and composed of a body portion and upper and lower plates projecting from the rear end thereof and extending above and below the toothed arc and pivoted at their rear ends to forward extensions of the central box of the cross-bar, the brace-block arranged between said upper and lower bars in rear of the toothed arc, the gear-wheel between said bars in advance of the are and meshing therewith, the shaft fixed in connection with said gear-wheel, the rack-wheel fixed to the shaft, the bolt for engaging said rack-wheel, the spring by which said bolt is held normally clear of the rack-wheel, the bell-crank lever for operating the bolt into engagement with the rack-wheel, and the hand-wheel on the shaft for operating the same, substantially as set forth.

2. Acoupling-framesubstantiallyas herein described, comprising the main cross-bar provided with means for connection with the machine, the toothed are secured to said crossbar and projecting at the front side thereof, the pole pivoted concentric with the toothed arc and arranged to swing along the same, and the gear-wheel carried by the pole and as set forth.

3. In a couplingframe for use on threshers and the like, the combination of the base or cross-bar, and the toothed arc projecting on the front side thereof, of the pole comprising the body portion and the upper and lower bars projecting therefrom and extending above and below the toothed arc and pivoted at their front ends in connection with the cross-bar and concentric with the are, and the gear-wheel operating between said upper and lower bars and meshed with the toothed arc, substantially as set forth.

4. A coupling-frame substantially as described, comprising the base or cross-bar, the toothed arc on the front side thereof, the coupling-pole extending past and movable along said arc and pivoted in connection with the cross-bar or base, and a gear-wheel carried by the pole and meshing with the toothed arc, substantially as set forth.

5. The combination in a coupling-frame of the cross-bar, the toothed arc xed thereto, the pole swinging along the toothed are, the gear-wheel carried by the pole and meshing with the toothed arc, the shaft for operating said gear-wheel, the bolt for locking the shaft, a spring for actuating the bolt in one direction, and the lever by which the bolt'may be operated in the opposite direction, substantially as set forth.

6. In a couplingframe, the combination with the base or cross-bar, and the toothed are secured thereto, of the coupling-pole comprising a body and upper and lower bars projecting rearwardly therefrom above and below the toothed arc and pivoted to the base, a filling-block between said upper and lower bars in rear of the are, the truss below the pole and extending between the body of the pole and the bottom bar in rear of the arc, and the wheel journaled to the pole in advance of the arc and meshed therewith, substantially as set forth.

7. In a coupling-frame for use on threshers and the like, the combination of the toothed arc, the pole pivoted at its rear end concentric with said arc, and the gear-wheel journaled to the pole and meshing directly with the toothed arc, substantially as set forth.

8. The combination ofthe transversely-extending bar, a toothed arc onthe front side thereof, the pole pivoted at its rear end concentric with the toothed arc, and the gearwheel carried by the pole and meshed with the toothed arc, substantially as set forth.

9. The combination of the toothed arc provided on its rear side at its middle with a projecting portion perforated for the passage of the locking-pin, the pole extended past the arc and pivoted at its rear end, the lockingpin by which the pole may be locked to the central portion of the arc, and the gear-wheel carried by the pole in advance of the toothed arc and meshed directly therewith, substantially as set forth.

SAMUEL C. ROCK. Witnesses:

MILTON G. MEFERREN, .BENJAMIN R. SUMMER.

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